rs745480657
Variant summary
Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM2PP3PP5_Very_Strong
The NM_021628.3(ALOXE3):c.434G>A(p.Arg145His) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000217 in 1,612,120 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_021628.3 missense, splice_region
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 11 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ALOXE3 | NM_021628.3 | c.434G>A | p.Arg145His | missense_variant, splice_region_variant | 4/16 | ENST00000448843.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ALOXE3 | ENST00000448843.7 | c.434G>A | p.Arg145His | missense_variant, splice_region_variant | 4/16 | 1 | NM_021628.3 | P1 | |
ALOXE3 | ENST00000380149.6 | c.434G>A | p.Arg145His | missense_variant, splice_region_variant | 3/15 | 1 | P1 | ||
ALOXE3 | ENST00000318227.4 | c.434G>A | p.Arg145His | missense_variant, splice_region_variant | 4/16 | 2 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152150Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000318 AC: 8AN: 251466Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135906
GnomAD4 exome AF: 0.0000219 AC: 32AN: 1459852Hom.: 0 Cov.: 31 AF XY: 0.0000220 AC XY: 16AN XY: 726384
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152268Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3AN XY: 74446
ClinVar
Submissions by phenotype
not provided Pathogenic:2
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Oct 07, 2021 | For these reasons, this variant has been classified as Pathogenic. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Studies have shown that this missense change results in skipping of exon 4 and introduces a premature termination codon (PMID: 19131948). The resulting mRNA is expected to undergo nonsense-mediated decay. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 39550). This missense change has been observed in individuals with autosomal recessive congenital ichthyosis (PMID: 19131948, 21668430, 32978145; Invitae). This variant is present in population databases (rs745480657, ExAC 0.009%). This sequence change replaces arginine with histidine at codon 145 of the ALOXE3 protein (p.Arg145His). The arginine residue is moderately conserved and there is a small physicochemical difference between arginine and histidine. RNA analysis indicates that this missense change induces altered splicing and may result in an absent or disrupted protein product. - |
Likely pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Sep 28, 2022 | Alters the last nucleotide of an exon and is predicted to damage the splice donor site; in vitro functional analysis in a mini gene assay showed that p.(Arg145His) leads to skipping of the following exon and a frameshift, denoted as p.Arg119GlyfsX12 (Eckl et al., 2009); This variant is associated with the following publications: (PMID: 34426522, 31589614, 32978145, 19131948, 21668430) - |
Autosomal recessive congenital ichthyosis 3 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Jun 01, 2009 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at